/*----------------------------------------------------------------------------
 * Copyright (c) <2013-2018>, <Huawei Technologies Co., Ltd>
 * All rights reserved.
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
 * of conditions and the following disclaimer in the documentation and/or other materials
 * provided with the distribution.
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
 * to endorse or promote products derived from this software without specific prior written
 * permission.
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *---------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
 * Notice of Export Control Law
 * ===============================================
 * Huawei LiteOS may be subject to applicable export control laws and regulations, which might
 * include those applicable to Huawei LiteOS of U.S. and the country in which you are located.
 * Import, export and usage of Huawei LiteOS in any manner by you shall be in compliance with such
 * applicable export control laws and regulations.
 *---------------------------------------------------------------------------*/

#include "lwip/opt.h"
#include "errno.h"

#if LWIP_NETIF_ETHTOOL /* don't build if not configured for use in lwipopts.h */
#include "lwip/ethtool.h"

static s32_t ethtool_get_link(struct netif *netif, struct ethtool_value *edata)
{
  LWIP_ASSERT("netif != NULL", netif != NULL);
  LWIP_ASSERT("edata != NULL", edata != NULL);

  edata->cmd = ETHTOOL_GLINK;

  if (!netif->ethtool_ops || !netif->ethtool_ops->get_link) {
    edata->data = netif_is_up(netif) && netif_is_link_up(netif);
    return 0;
  }

  edata->data = netif_is_up(netif) && netif->ethtool_ops->get_link(netif);
  return 0;
}

s32_t dev_ethtool(struct netif *netif, struct ifreq *ifr)
{
  u32_t ethcmd;
  s32_t ret;

  LWIP_ASSERT("netif != NULL", netif != NULL);
  LWIP_ASSERT("ifr != NULL", ifr != NULL);

  if (netif->ethtool_ops && netif->ethtool_ops->begin) {
    ret = netif->ethtool_ops->begin(netif);
    if (ret  < 0)
      return ret;
  }

  ethcmd = *(u32_t *)ifr->ifr_data;

  switch (ethcmd) {
  case ETHTOOL_GLINK:
    ret = ethtool_get_link(netif, (struct ethtool_value *)ifr->ifr_data);
    break;
  default:
    ret = EOPNOTSUPP;
    break;
  }

  if (netif->ethtool_ops && netif->ethtool_ops->complete)
    netif->ethtool_ops->complete(netif);
  return ret;
}

#endif /* LWIP_NETIF_ETHTOOL */

